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The multiple derivatives of position

  1. Jun 4, 2014 #1
    Hi all,
    I came across the term placement, and presentment and the likes. I was wondering what they may mean in physics. I tried a search but the answers were not very clear. I was also wondering what action means in physics.
    Any answers will be appreciated. Thanks
  2. jcsd
  3. Jun 4, 2014 #2


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    Gold Member

    I have not seen the terms placement and presentment used as technical terms in physics. Placement is just where and how you put something ... like placement of table ware at a banquet, Presentment is how somethig is presented .. perhaps its orientation. These are both English descriptive terms; just follow the dictionary definitions.

    Action is a technical term from physics. It is used in mechanics and quantum mechanics. Plank's constant has units of action.
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